CN114657940A - Formwork system and construction method of plywood formwork cast-in-situ gravity type dike retaining wall concrete - Google Patents
Formwork system and construction method of plywood formwork cast-in-situ gravity type dike retaining wall concrete Download PDFInfo
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- CN114657940A CN114657940A CN202210490451.2A CN202210490451A CN114657940A CN 114657940 A CN114657940 A CN 114657940A CN 202210490451 A CN202210490451 A CN 202210490451A CN 114657940 A CN114657940 A CN 114657940A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
Abstract
The invention discloses a formwork system and a construction method of plywood formwork cast-in-situ gravity type dike retaining wall concrete; the method is characterized in that: the concrete formwork system is constructed by adopting plywood as a surface formwork and square timber, scaffold steel pipes, fasteners, butterfly buckles, inner pull rods and the like. When the method is implemented specifically, scaffold steel pipes which are vertically placed close to a wall surface are used as guiding and positioning steel pipes, the height of the template is controlled by the width of the plywood in a layered mode, except that sudden changes of the cross section of the retaining wall and concrete on the top of the wall are poured to the designed elevation, and other layers of concrete are constructed to the position 10cm below the top surface of the template. When the method is used for cast-in-situ long and large concrete embankment retaining wall, compared with the common steel template formwork system, the method has the advantages that the template cost is low, and a large amount of investment can be realized at one time; the self weight is light, and the installation and the disassembly are convenient; good linear adaptability to the plane of the retaining wall, smoother wall surface and the like.
Description
Technical Field
The invention relates to the field of retaining wall construction of water conservancy embankment engineering, in particular to a formwork system and a construction method of plywood formwork cast-in-situ gravity type embankment retaining wall concrete.
Background
The gravity retaining wall is very commonly applied in engineering construction, relies on self gravity to balance a soil body, and has the advantages of simple structure type, convenient construction and the like. When the gravity retaining wall is used for water conservancy embankment engineering, the construction period is short due to the factors of longer construction section, large influence of flood season and the like, and when a common large-size plane steel template is used, the template investment is large, and hoisting machinery is needed for installation, so that the cost for amortizing the template is high. In addition, when the plane steel template is used for constructing a curve section embankment retaining wall, the template can not adapt to the curved line shape of the retaining wall well due to high rigidity of the template, and the concrete wall surface can easily form obvious folding lines, so that the attractiveness is influenced. In order to solve the problems, a formwork system which is simple and convenient to operate, can reduce the cost of the formwork and is suitable for the curved surface line shape of the flat curve section retaining wall and a construction method thereof need to be researched and developed.
Disclosure of Invention
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a formwork system and a construction method of a plywood formwork cast-in-situ gravity type dyke retaining wall concrete; the method is suitable for cast-in-situ gravity type dyke retaining wall concrete.
The invention is realized in this way, and provides a formwork system of plywood mould cast-in-situ gravity type dyke retaining wall concrete, which is characterized in that: comprises a face template, a secondary ridge, a main ridge, an upper longitudinal beam, an upper cross beam, an inner pull rod and a butterfly buckle; the surface template adopts a plywood, and the back side of the surface template is sequentially provided with a secondary ridge and a main ridge; wherein one end of the inner pull rod is embedded into the concrete, and the other end is clamped on the main edge by a butterfly buckle; wherein, an upper longitudinal beam is arranged on the back side of the secondary edge and is more than 10cm higher than the top of the face template, and the upper longitudinal beam is connected with the secondary edge of the steel pipe by a rotary fastener; wherein the upper longitudinal beams on two sides of the wall body are connected and fixed with the upper cross beam by a rotary fastener.
The formwork system of the plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that the formwork system comprises a formwork body, a formwork supporting frame and a formwork supporting frame; the surface template is made of plywood, and the surface template is controlled by the width of the plywood according to the layered building height.
The formwork system of the plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that the formwork system comprises a formwork body, a formwork supporting frame and a formwork supporting frame; the secondary corrugation comprises a steel pipe secondary corrugation and a square wood secondary corrugation, wherein the steel pipe secondary corrugation adopts a phi 48mm scaffold steel pipe with the length of 4-6 m, and the steel pipe secondary corrugation is vertically placed along a concrete wall and also serves as a slope guiding and positioning steel pipe; the square wood secondary ridges are made of 50mm multiplied by 100mm battens, are parallel to the steel pipe secondary ridges and are arranged in the middle of vertical seams of the face formwork, and the square wood secondary ridges are fixedly connected with the face formwork through iron nails.
The formwork system of the plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that the formwork system comprises a formwork body, a formwork supporting frame and a formwork supporting frame; the main ridges, the upper longitudinal beams and the upper cross beams are all made of phi 48mm scaffold steel pipes, wherein the main ridges are of a double-steel-pipe structure of 2 multiplied by phi 48mm, and the upper longitudinal beams and the upper cross beams are made of single phi 48mm steel pipes.
The formwork system of the plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that the formwork system comprises a formwork body, a formwork supporting frame and a formwork supporting frame; the inner pull rod is made of steel bars with the diameter of 12 mm-14 mm.
A construction method of plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that; the method is carried out as follows;
the construction process flow is as follows;
(1) dividing concrete construction layers, calculating the side pressure of a template according to the maximum layer height, designing the thickness of a face template, the specifications and the intervals of secondary edges, main edges and inner pull rods of the steel pipe, and using the steel pipe as a formwork system design parameter after the steel pipe is checked and calculated to be qualified;
(2) and upper longitudinal beams are arranged above the surface templates on two sides of the retaining wall, the upper longitudinal beams are connected through upper cross beams, and the upper cross beams are arranged at intervals of 3m and used for reinforcing and locking the upper part of the formwork supporting system.
Step 2, constructing foundation concrete: the retaining wall foundation concrete adopts plywood or steel formwork vertical formwork cast-in-situ, and inner pull rods are respectively embedded in the concrete on the top surface and the back side of the foundation during construction;
(1) and (3) mortar strip application: and (4) reserving a surface template and a steel pipe secondary corrugation position on the top surface of the foundation concrete according to the wall surface line, and then paying off to construct an M7.5 mortar strip. The mortar strip is a rectangular section with the height of 80mm and the width of 150 mm;
(2) installing a formwork system: installing a face template, secondary ridges, a main ridge, an inner pull rod and butterfly buckles, connecting exposed steel pipe secondary ridges ejected out of the face template with upper longitudinal beams through rotary fasteners, and connecting the upper longitudinal beams on two sides of the wall body with upper cross beams through rotary fasteners;
(3) after the end formwork is installed, the first layer of wall body concrete is poured, and an inner pull rod is embedded in the top surface of the concrete during construction;
and 4, constructing the concrete of the middle layer wall body: after the concrete of the poured layer is hardened, the construction of the concrete of the upper layer is carried out, when the height of the secondary steel pipe edge does not meet the requirement of formwork erection, the secondary steel pipe edge is lifted, and then a surface formwork exposed below the secondary steel pipe edge and the secondary square wood edge are disassembled for subsequent construction of retaining wall concrete;
(1) moving the upper longitudinal beam and the upper cross beam above a layer formwork to be poured for reinstallation, and installing a face formwork, a main edge, an inner pull rod and a butterfly buckle;
(2) after the end formwork is installed, pouring the wall body concrete of the layer, and embedding an inner pull rod on the top surface of the concrete during construction;
step 6, constructing the first layer of wall concrete above the weighing platform:
(1) and (3) mortar strip application: and (4) reserving a surface template and a steel pipe secondary corrugation position on the top surface of the weighing platform according to the back line of the wall, then paying off, and configuring an M7.5 mortar manufacturing strip. The mortar strip is a rectangular section with the height of 80mm and the width of 150 mm;
(2) installing a formwork system: the wall surface is provided with a surface template, a main ridge, an inner pull rod and a butterfly buckle, the wall back is provided with a surface template, a secondary ridge, a main ridge, an inner pull rod and a butterfly buckle, the secondary ridge of the steel pipe, which is exposed from the top of the surface template, is connected with the upper longitudinal beam through a rotating fastener, and the upper longitudinal beams on two sides of the wall body are connected with the upper cross beam through a rotating fastener;
(3) after the end formwork is installed, wall body concrete is poured, and an inner pull rod is embedded in the top surface of the concrete during construction;
step 7, constructing the middle layer wall body concrete above the weighing platform: repeating the step 4;
step 8, construction of top wall body concrete of the weighing platform: repeating the step 4, no inner pull rod is pre-embedded during construction, and the top surface of the concrete is leveled;
step 9, wall surface treatment: and cleaning the wall surface along with the disassembly progress of the surface template, cutting off the inner pull rod exposed out of the wall body by using a handheld grinder, and decorating the wall surface.
The invention has the advantages that: the invention provides a plywood mould cast-in-situ gravity type dyke retaining wall concrete and a construction method thereof through improvement; the method is suitable for cast-in-situ gravity type dyke retaining wall concrete; compared with a common steel template formwork system, the method has the following characteristics:
(1) the self-weight is light, the installation and the disassembly are convenient and quick, no hoisting equipment is needed, the slope of the retaining wall is accurately controlled, and the like.
(2) The template amortization cost is low, and a large amount of investment can be made at one time, so that the template amortization method is more suitable for construction of a large-sized retaining wall.
(3) The template can form a curved surface, has good linear adaptability to the plane of the retaining wall, is smooth on the wall surface, and is more suitable for the construction of the retaining wall at a curved section.
(4) The construction layering height is not large, which is beneficial to the dissipation of the hydration heat of the concrete with large volume.
Drawings
FIG. 1 is a flow chart of the construction process of the plywood form cast-in-situ gravity type dyke retaining wall concrete construction method of the present invention;
fig. 2 is a schematic view of the vertical arrangement of the face formwork, the secondary ridge, the main ridge, the butterfly buckle, the upper longitudinal beam and the upper cross beam;
FIG. 3 is a schematic construction view of the first layer wall concrete and the middle layer wall concrete above the foundation;
FIG. 4 is a view of a in FIG. 3;
FIG. 5 is a schematic construction diagram of middle layer wall concrete and weighing platform wall concrete;
FIG. 6 is a schematic view of the construction of the first layer of wall concrete above the weighing platform;
FIG. 7 is a schematic construction view of wall concrete and wall top concrete of an intermediate layer above a weighing platform;
fig. 8 is a cross-sectional view after completion of the embankment block wall concrete.
Wherein: the face formwork comprises a face formwork 1, secondary ridges 2, main ridges 3, upper longitudinal beams 4, upper cross beams 5, inner pull rods 6 and butterfly buckles 7.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive changes, fall within the scope of protection of the present invention.
The invention provides a plywood mould cast-in-situ gravity type dyke retaining wall concrete and a construction method thereof through improvement; as shown in fig. 2 to 7, it can be implemented as follows; the formwork system of the dike retaining wall concrete comprises a surface formwork 1, secondary ridges 2, main ridges 3, upper longitudinal beams 4, upper cross beams 5, inner pull rods 6 and butterfly buckles 7; the surface template 1 is made of plywood, and the back side of the surface template 1 is sequentially provided with a secondary ridge 2 and a main ridge 3; wherein one end of the inner pull rod 6 is embedded into the concrete, and the other end is buckled and clamped on the main edge 3 by a butterfly buckle 7; wherein, the upper longitudinal beam 4 is arranged on the back side of the secondary edge 2 and is higher than the top of the face template 1 by more than 10cm, and the upper longitudinal beam 4 is connected with the steel pipe secondary edge 201 by a rotary fastener; wherein the upper longitudinal beams 4 on two sides of the wall body are connected and fixed with the upper cross beam 5 by a rotary fastener.
When the invention is implemented; as shown in fig. 2 to 7, the surface formwork 1 is made of plywood, and the surface formwork 1 is controlled by the width of the plywood to be built up in layers. The secondary ridge 2 comprises a steel pipe secondary ridge 201 and a square wood secondary ridge 202, wherein the steel pipe secondary ridge 201 is a phi 48mm scaffold steel pipe with the length of 4-6 m, and is vertically placed along a concrete wall and also used as a slope guiding and positioning steel pipe; the square wood secondary ridges 202 are 50mm multiplied by 100mm wood squares, the square wood secondary ridges 202 are parallel to the steel pipe secondary ridges 201 and are arranged in the middle of the vertical joint of the surface formwork 1, and the square wood secondary ridges 202 are fixedly connected with the surface formwork 1 through iron nails. The main ridges 3, the upper longitudinal beams 4 and the upper cross beams 5 are all made of phi 48mm scaffold steel pipes, wherein the main ridges 3 are of a double-steel-pipe structure of 2 multiplied by phi 48mm, and the upper longitudinal beams 4 and the upper cross beams 5 are made of single phi 48mm steel pipes. The inner pull rod 6 is made of steel bars with the diameter of 12 mm-14 mm.
The invention provides a construction method of a plywood mould cast-in-situ gravity type embankment retaining wall by improvement; the method is suitable for cast-in-situ gravity type dyke retaining wall concrete;
as shown in fig. 1, the method is implemented according to the following steps and methods:
(1) dividing concrete construction layers, calculating the side pressure of the formwork according to the maximum layered height, designing the thickness of the surface formwork 1, the specifications and the intervals of the steel pipe secondary edges 201, the main edges 3 and the inner pull rods 6, and using the qualified concrete as a formwork system design parameter after checking.
(2) And upper longitudinal beams 4 are arranged above the surface templates on two sides of the retaining wall, the upper longitudinal beams 4 are connected by upper cross beams 5, and the upper cross beams 5 are arranged at intervals of 3m and used for reinforcing and locking the upper part of the formwork supporting system.
Step 2, constructing foundation concrete: the retaining wall foundation concrete adopts plywood or steel formwork vertical formwork for cast-in-situ, and the inner pull rods 6 are respectively embedded in the concrete on the top surface and the back side of the foundation during construction.
And 3, constructing the first layer of wall concrete above the foundation as shown in figure 3:
(1) and (3) mortar strip application: and (3) reserving the positions of a surface template 1 and a steel pipe secondary edge 201 on the top surface of the foundation concrete according to wall lines, and then paying off to construct an M7.5 mortar strip. The mortar strip has a rectangular cross section with a height of 80mm and a width of 150 mm.
(2) Installing a formwork system: the surface formwork 1, the secondary edge 2, the main edge 3, the inner pull rod 6 and the butterfly buckle 7 are installed, the steel pipe secondary edge 201 exposed out of the surface formwork 1 is connected with the upper longitudinal beam 4 through a rotary fastener, and the upper longitudinal beams 4 on two sides of the wall body are connected with the upper cross beam 5 through the rotary fastener.
(3) And after the end formwork is installed, the first-layer wall body concrete is poured, and an inner pull rod 6 is embedded in the top surface of the concrete during construction.
And 4, as shown in figures 3-4, constructing the concrete of the middle layer wall body: and after the poured layer concrete is hardened, performing the construction of the previous layer concrete, lifting the steel pipe secondary edge 201 when the height 201 of the steel pipe secondary edge does not meet the requirement of formwork support, and then disassembling the exposed surface formwork 1 and the exposed square wood secondary edge 202 below the steel pipe secondary edge 201 for subsequent construction of retaining wall concrete.
(1) And moving the upper longitudinal beam 4 and the upper cross beam 5 to the upper part of the layer formwork to be poured for re-installation, and installing the surface formwork 1, the main edge 3, the inner pull rod 6 and the butterfly buckle 7.
(2) And after the end formwork is installed, the wall body concrete of the layer is poured, and an inner pull rod 6 is embedded in the top surface of the concrete during construction.
Step 6, as shown in fig. 6, constructing the first layer of wall body concrete above the weighing platform:
(1) and (3) mortar strip application: and (3) reserving positions of a face template 1 and a steel pipe secondary edge 201 on the top surface of the weighing platform according to a wall back line, then paying off, and configuring an M7.5 mortar manufacturing strip. The mortar strip has a rectangular cross section with a height of 80mm and a width of 150 mm.
(2) Installing a formwork system: the wall surface mounting face template 1, main stupefied 3, inner pull rod 6 and butterfly buckle 7, wall back mounting face template 1, inferior stupefied 2, main stupefied 3, inner pull rod 6 and butterfly buckle 7, the steel pipe that face template 1 pushes out the exposure is stupefied 201 and is connected with last longeron 4 with rotatory fastener, is connected with rotatory fastener between the last longeron 4 of wall body both sides and the entablature 5.
(3) And after the end formwork is installed, wall body concrete is poured, and an inner pull rod 6 is embedded in the top surface of the concrete during construction.
Step 7, constructing the middle layer wall body concrete above the weighing platform: and (4) repeating the step.
Step 8, as shown in fig. 7, the top wall body concrete construction of the weighing platform comprises the following steps: and (4) repeating the step (4), wherein the inner pull rod 6 is not pre-embedded during construction, and the top surface of the concrete is leveled.
Step 9, as shown in fig. 5 to 8, wall surface processing: and cleaning the wall surface along with the disassembly progress of the surface template, cutting off the inner pull rod 6 exposed out of the wall body by using a handheld grinder, and decorating the wall surface.
The invention has the following characteristics:
(1) the self-weight is light, the installation and the disassembly are convenient and quick, no hoisting equipment is needed, the slope of the retaining wall is accurately controlled, and the like.
(2) The template amortization cost is low, and a large amount of investment can be made at one time, so that the template amortization method is more suitable for construction of a large-sized retaining wall.
(3) The template can form a curved surface, has good linear adaptability to the plane of the retaining wall, is smooth on the wall surface, and is more suitable for the construction of the retaining wall at a curved section.
(4) The construction layering height is not large, which is beneficial to the dissipation of the hydration heat of the concrete with large volume.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A formwork system of plywood mould cast-in-situ gravity type dyke retaining wall concrete is characterized in that; the retaining wall concrete comprises a face template (1), secondary ridges (2), main ridges (3), upper longitudinal beams (4), upper cross beams (5), inner pull rods (6) and butterfly buckles (7); the surface template (1) is made of plywood, and the back side of the surface template (1) is sequentially provided with a secondary edge (2) and a main edge (3); wherein one end of the inner pull rod (6) is embedded into the concrete, and the other end is buckled and clamped on the main edge (3) by a butterfly buckle (7); wherein, an upper longitudinal beam (4) is arranged on the back side of the secondary edge (2) which is 10cm higher than the top of the face template (1), and the upper longitudinal beam (4) is connected with the secondary edge (201) of the steel pipe by a rotary fastener; wherein the upper longitudinal beams (4) on two sides of the wall body are fixedly connected with the upper cross beam (5) by a rotary fastener.
2. The formwork system of plywood mold cast-in-place gravity type dyke dam retaining wall concrete according to claim 1, wherein; the surface template (1) is made of plywood, and the width of the plywood is used for controlling the layered building height of the surface template (1).
3. The formwork system of plywood mold cast-in-place gravity type dyke dam retaining wall concrete according to claim 1, wherein; the secondary edge (2) comprises a steel pipe secondary edge (201) and a square wood secondary edge (202), wherein the steel pipe secondary edge (201) is a phi 48mm scaffold steel pipe with the length of 4-6 m, and is vertically placed along a concrete wall and also used as a slope guiding and positioning steel pipe; the square wood secondary ridges (202) are 50mm multiplied by 100mm wood ridges, the square wood secondary ridges (202) are parallel to the steel pipe secondary ridges (201) and are arranged in the middle of the vertical joint of the surface template (1), and the square wood secondary ridges (202) are fixedly connected with the surface template (1) through iron nails.
4. The formwork system of plywood mold cast-in-place gravity type dyke dam retaining wall concrete according to claim 1, wherein; the main edge (3), the upper longitudinal beam (4) and the upper cross beam (5) are all made of scaffold steel pipes with the diameter of 48mm, the main edge (3) is of a double-steel-pipe structure with the diameter of 2 multiplied by 48mm, and the upper longitudinal beam (4) and the upper cross beam (5) are all made of single steel pipes with the diameter of 48 mm.
5. The formwork system for plywood in-situ casting gravity type dike dam wall concrete according to claim 1, wherein; the inner pull rod (6) is made of reinforcing steel bars with the diameter of 12 mm-14 mm.
6. A construction method of plywood mould cast-in-situ gravity type embankment retaining wall concrete is characterized in that; the method is carried out as follows;
the construction process flow is as follows;
step 1, designing parameters of a formwork supporting system:
(1) dividing concrete construction layers, calculating the side pressure of a formwork according to the maximum layer height, designing the thickness of a face formwork (1), the specifications and the intervals of a steel pipe secondary edge (201), a main edge (3) and an inner pull rod (6), and using the qualified side pressure as a formwork support system design parameter after checking;
(2) upper longitudinal beams (4) are arranged above the surface templates on two sides of the retaining wall, the upper longitudinal beams (4) are connected through upper cross beams (5), and the upper cross beams (5) are arranged at intervals of 3m and used for reinforcing and locking the upper part of a formwork supporting system;
step 2, constructing foundation concrete: the retaining wall foundation concrete adopts plywood or steel formwork vertical formwork for cast-in-situ, and inner pull rods (6) are respectively embedded in the concrete on the top surface and the back side of the foundation during construction;
step 3, constructing the first layer of wall concrete above the foundation:
(1) and (3) mortar strip application: reserving the positions of a surface template (1) and a steel pipe secondary edge (201) on the top surface of the foundation concrete according to wall lines, then paying off, and constructing an M7.5 mortar strip;
the mortar strip is a rectangular section with the height of 80mm and the width of 150 mm;
(2) installing a formwork system: mounting a face template (1), secondary edges (2), main edges (3), inner pull rods (6) and butterfly buckles (7), wherein the exposed steel pipe secondary edges (201) ejected out of the face template (1) are connected with upper longitudinal beams (4) through rotary fasteners, and the upper longitudinal beams (4) on two sides of a wall body are connected with upper cross beams (5) through rotary fasteners;
(3) after the end formwork is installed, the first-layer wall body concrete is poured, and an inner pull rod (6) is embedded in the top surface of the concrete during construction;
and 4, constructing the concrete of the middle layer wall body: after the poured layer concrete is hardened, the construction of the upper layer concrete is carried out, when the height (201) of the secondary steel pipe edge does not meet the requirement of formwork support, the secondary steel pipe edge (201) is lifted, and then a surface formwork (1) and a square wood edge (202) exposed below the secondary steel pipe edge (201) are disassembled for subsequent retaining wall concrete construction;
(1) moving the upper longitudinal beam (4) and the upper cross beam (5) to the position above a layer of formwork to be poured for re-installation, and installing a face formwork (1), a main edge (3), an inner pull rod (6) and a butterfly buckle (7);
(2) after the end formwork is installed, pouring the wall body concrete of the layer, and embedding an inner pull rod (6) on the top surface of the concrete during construction;
step 5, carrying out concrete construction on the wall body at the weighing platform: repeating the step 4 until the wall concrete construction at the weighing platform is completed;
step 6, constructing the first layer of wall concrete above the weighing platform:
(1) applying a mortar strip: the method comprises the following steps of (1) reserving positions of a face template (1) and a steel pipe secondary edge (201) on the top surface of a weighing platform according to a wall back line, then paying off, and configuring M7.5 mortar manufacturing strips;
the mortar strip is a rectangular section with the height of 80mm and the width of 150 mm;
(2) installing a formwork system: the wall surface mounting face template (1), the main edge (3), the inner pull rod (6) and the butterfly buckle (7) are arranged on the wall surface, the wall back mounting face template (1), the secondary edge (2), the main edge (3), the inner pull rod (6) and the butterfly buckle (7) are arranged on the wall surface, the exposed steel pipe secondary edge (201) ejected out of the face template (1) is connected with the upper longitudinal beam (4) through a rotary fastener, and the upper longitudinal beams (4) on two sides of the wall body are connected with the upper cross beam (5) through the rotary fastener;
(3) after the end formwork is installed, wall body concrete is poured, and an inner pull rod (6) is embedded in the top surface of the concrete during construction;
step 7, constructing the concrete of the middle layer wall above the weighing platform: repeating the step 4;
step 8, construction of top wall body concrete of the weighing platform: repeating the step 4, wherein the inner pull rod (6) is not pre-embedded during construction, and the top surface of the concrete is leveled;
step 9, wall surface treatment: and cleaning the wall surface along with the disassembly progress of the surface template, cutting off the inner pull rod (6) exposed out of the wall body by using a handheld grinder, and modifying the wall surface.
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| CN110616735A (en) * | 2019-09-09 | 2019-12-27 | 湖南建工集团有限公司 | Template system for retaining wall and construction method of retaining wall |
| CN210766867U (en) * | 2019-09-09 | 2020-06-16 | 湖南建工集团有限公司 | A template system for retaining wall |
| CN111910679A (en) * | 2020-08-12 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of overlong and ultrahigh-weight retaining wall under complex terrain |
| CN112049148A (en) * | 2020-08-27 | 2020-12-08 | 五冶集团上海有限公司 | Construction method of high-fill super-thick weighing concrete retaining wall |
| CN213979033U (en) * | 2020-09-01 | 2021-08-17 | 中国建筑第六工程局有限公司 | Concrete gravity retaining wall unilateral formwork fixed knot constructs |
| CN114263212A (en) * | 2022-02-16 | 2022-04-01 | 广州市第三市政工程有限公司 | Single-side formwork support system for inclined retaining wall |
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2022
- 2022-05-07 CN CN202210490451.2A patent/CN114657940A/en active Pending
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| US3748806A (en) * | 1971-04-01 | 1973-07-31 | V Talandis | Concrete wall form |
| KR20050097291A (en) * | 2004-04-01 | 2005-10-07 | 주식회사 삼성산업 | Method for constructing retaining wall |
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| CN110616735A (en) * | 2019-09-09 | 2019-12-27 | 湖南建工集团有限公司 | Template system for retaining wall and construction method of retaining wall |
| CN210766867U (en) * | 2019-09-09 | 2020-06-16 | 湖南建工集团有限公司 | A template system for retaining wall |
| CN111910679A (en) * | 2020-08-12 | 2020-11-10 | 中建八局第二建设有限公司 | Construction method of overlong and ultrahigh-weight retaining wall under complex terrain |
| CN112049148A (en) * | 2020-08-27 | 2020-12-08 | 五冶集团上海有限公司 | Construction method of high-fill super-thick weighing concrete retaining wall |
| CN213979033U (en) * | 2020-09-01 | 2021-08-17 | 中国建筑第六工程局有限公司 | Concrete gravity retaining wall unilateral formwork fixed knot constructs |
| CN114263212A (en) * | 2022-02-16 | 2022-04-01 | 广州市第三市政工程有限公司 | Single-side formwork support system for inclined retaining wall |
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